How Will ‘The Big Bang Theory’ Crossover with ‘Young Sheldon?’

Young Sheldon takes place about 30 years before The Big Bang Theory so the chances of a crossover seemed very slim. But the network is making it work and the details about the crossover are here. So how will young Sheldon and older Sheldon meet? Here is everything you need to know about the crossover episode.

Iain Armitage of Young Sheldon will appear on The Big Bang Theory through a tape

Sheldon and Amy in The Big Bang Theory | CBS

The young actor is going to appear on The Big Bang Theory for its final season. The Dec. 6 episode is titled “The VCR Illumination” and according to Digital Spy the synopsis reads “Sheldon and Amy are still down about their theory being disproven, but a VHS tape from Sheldon’s past inspires him not to give up.”

Iain Armitage will appear along with Lance Barber and Montana Jordan, according to The Hollywood Reporter. So George and Georgie will be part of the mission to inspiring the couple.

It recently came to light that the couple’s theory of Super-Asymmetry was already disproven. Leonard broke the news that a Russian scientist disproved it back in 1978 in the episode, “The Citation Negation.” This crossover will happen in the episode right after this discovery.

Jim Parsons’ personal life was sort of the inspiration for Young Sheldon

The cast of Young Sheldon in the pilot episode | CBS

Things are coming full circle with young Sheldon inspiring the older one onscreen. Obviously, the first show is the inspiration for the newer one, but Jim Parsons’ life also inspired the spinoff.

“We had been asked by [CBS] executives, ‘Would you look into your own life? Because those pitch well,” Jim Parsons explained to Entertainment Tonight. “So we were looking at my family and one of my nephews, my sister’s kids, her oldest, he’s very smart. Not like in a Sheldon way, but they frequently say, ‘Where did he come from?’ So we were like, this sounds like a good idea. And the more we talked — they’re in Texas — and it was, like, this relates.”

Parsons also explained what it’s been like to watch Iain Armitage. “You are having fun and it’s been really inspirational to watch,” Parsons told Armitage. “There’s just a way in which he’s tackling all this that is so such fun and such joy of the process… You’re a reminder to, I think, anybody who’s been doing it for a while to [see] how much fun it is.”

So fans will get to see that same dynamic in this season of The Big Bang Theory. The spinoff show has picked up more threads from The Big Bang Theory in its second season.

“We learned on The Big Bang Theoryat the end of last season that [Jerry O’Connell’s] Georgie [is] a tire expert and has a chain of shops,” Young Sheldon showrunner Steven Molaro told TV Line. “So we’re circling around [the idea] of [Montana Jordan]’s Georgie [on Young Sheldon] getting a part-time job at an auto shop and discovering his affinity for tires.”

Hopefully, the original show will continue to be a source for more ideas for the new show even after its final season.